Nobita and friends finds a secret underwater castle packed with mysteries and riches. With Doraemon's high-tech gadgets, they dive into an ocean adventure mixing humor, teamwork, and imagination in a breathtaking aquatic world.
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Doraemon (voice)
Nobita (voice)
Shizuka (voice)
Gian (voice)
Suneo (voice)
Eru (voice)
Underwater Buggy (voice)
